Warning Flag Rules
Scuba divers must display a warning flag when diving:
◦ The diver’s flag must measure at least 15 inches horizontally and 12 inches vertically. ◦ Both sides must have a red-colored background bisected diagonally by a 3 inch wide white stripe.
◦ There is also a blue and white diver’s flag authorized under the federal rules of the road.
◦ No more than 4 divers shall dive under 1 flag.
◦ Divers must remain within 50 feet (measured horizontally) of the warning flag.
◦ If a group of divers is using a contained area, the perimeter of the area must be marked: ◦ The area must be outside the normal area of navigation.
◦ These markings must consist of the official diver’s flag and must be placed around the perimeter of the diving area at intervals of not more than 150 feet.
◦ Do not place a diver’s flag where it will obstruct navigation.
◦ The diver’s flag may be displayed on a watercraft or float or be anchored to the bottom.
◦ The top of the flag must be at least 30 inches above the surface; however, boats not involved with the diving operation must remain 150 feet away from a flag.
◦ Persons who dive at any time from sunset to sunrise must carry a diver’s light visible when above the water for a distance of 150 feet.
◦ Scuba or skin diving while in possession of a spear is unlawful from sunset to sunrise.
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